The story of a man who was engaged by a pious man of Rājagaha to guard his gate.
The gate had to be kept shut for fear of thieves and, as a result, monks had often to go away without receiving any alms.
A man was therefore engaged to see that the monks' needs were satisfied.
The gate-keeper was born after death in Tāvatimsa. Vv.v.5; VvA.246f.